VALVE GP-SEQUENCE 4T1569 - Caterpillar

1. Disconnect hose assemblies (1), (2), (3) and (6) (obscured) from parking brake control valve (5).2. Disconnect electrical connectors (4), (7) and (8) from parking brake control valve (5).3. Remove the two bolts and washers that hold parking brake control valve (5) to the rear frame. Remove the parking brake control valve. The following steps are for the installation of the parking brake control valve.4. Position the parking brake control valve on the rear frame as shown. Install the two bolts and washers that hold parking brake control valve (5) to the rear frame.5. Connect electrical connectors (4), (7) and (8) to parking brake control valve (5).6. Connect hose assemblies (1), (2), (3) and (6) (obscured) to parking brake control valve (5).7. Fill the hydraulic oil tank with oil to the correct level. Refer to R1300 L.H.D. Operation & Maintenance Manual, Form No. SEBU7321 (9EL9617) for the correct filling procedure.8. Bleed the parking brake. Refer to Remove Air from the Braking System, R1300 L.H.D. Braking System, Systems Operation, Testing & Adjusting, Form No. RENR4608 (9EL9607).End by:a. Remove steering frame lock pin.